The FiBO 300 unveiled by Promet International Inc. is a portable phase-shifting Michelson interferometer for fiber end face and microcomponent testing. It performs high-resolution 3-D surface metrology and microscope inspection, as well as accurate interferometric measurements, in seconds. A built-in turret enables quick and easy switching between calibrated objectives (1.8× to 20×). The compact and vibration-insensitive system includes a USB 2.0 interface and FiBO Code software. It is suitable for single-mode 125-μm and multimode 125- to 700-μm fiber optic connectors, for photonic crystal fibers and for micro-optics that are <1 mm in diameter.